Analytical chemistry question?
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02-21-2014, 01:30 AM
Post: #2
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The answer is 2285.6 ppm .... how to get that answer I'm not sure ... but let me know if you find out how to find that answer @MannyRutinel on twitter
Nevermind I found out how to do it: From the total mass of sample (n is #mol) 38.8626 = (n(FeCl3) x 162.2) + (n(KCL) x 74.5513) from the titration # mol AgNO3 used gives us the total # mol Cl- = 5.6878 x 0.12622 = 0.717914 mol Cl- so 0.717914 = 3n(FeCl3) + n(KCl) use both equations to find n of each constituent. From n(KCL) calculate mass K then ppm is calculated like a mass percentage ppm K = (mass K/38.8626g) x 10^6 ppm Ads |
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Analytical chemistry question? - irvine_86 - 02-21-2014, 01:26 AM
[] - Mighty man - 02-21-2014 01:30 AM
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